Heat conserving attachment for upright boilers



y 1931- F. M. SIMPSON ET AL 1,816,153

HEAT GONSERVING ATTACHMENT FOR UPRIGI-IT BOILERS Filed March 20, 1929 FlE. .L.

2 jg 10 J/ 1 7 ented July 28, 1931 g 1 UNITED STATES PATENT OFFICEFRANCIS M. SIMPSON AND ROBERT TERRY, OF STROUD, OKLAHOMA; SAID TERRY AS-SIGNOR TO SAID SIMPSON HEAT CONSERVING ATTACHMENT or UPRIGHT BOILERSApplication filed March 20, 1929. Serial No. 348,547.

upright boiler for compelling the products of combustion to pass downthe sides of the boiler in order to assist in heating the boiler,thereby saving fuel.

Another object of the invention is the provision of novel means formounting and assembllng inner and outer shells or hoods cover the boilerfor the flow of the products of combustion downwardly within the in-,ner' hood and upwardly within the outer hood.

view, which will be apparent as the description proceeds, the invention:resides in the construction and arrangement of parts, as hereinafterdescribed and claimed, it being understood that changes can be madewithin the scope of what is claimed, without departing from the spiritof the invention.

The invention is illustrated in the accompanying drawings, whereinFigure'l is a vertical section of the device, illustrating the boilerand other portions in elevation. I t

Fig. 2 is a section on the line 22 of Fig. 1, omitting the boiler.

The device is attached or mounted over an upright water-boiler 7 whichis heated by a gas burner or other suitable heater, and the products ofcombustion are discharged from the top or upper end of the boiler.

An inner shell or hood 8, having the top 9, is positionedover theboiler, and is supported by a split band .10 embracing the boiler. Theends ofthe band are connected by a bolt 1.1 for tightening the band onthe boiler, and said band has outstanding brackets 12 on which the lowerend of the hood 8 is seated, thereby conveniently supporting the hoodfrom the boiler.

The outer shell or hood 13 is placed over the inner hood, and has legs14 seating on the floor. The hood 13 has a top 15 pro- With theforegoing and other objects in vided' with an outlet 16 for the productsof combustion.

The lower end of the hood 13 extends lower down than the hood 8, butboth hoods are spaced above the floor. The hoods are spaced from oneanother and from the boil er so that the products of combustion willpass downwardly between the inner hood and boiler and thence upwardlybetween the two hoods to the outlet 16. The products of combustionsurrounding the boiler will assist in heating the boiler, so as toconserve the heat and save fuel.

In order to direct the products of combustion from the inner hood belowthe lower edge thereof to the space between the hoods, a sleeve 17embraces the boiler and has a lower outstanding flange 18 spaced belowthe hood 8 and extending to the hood 13,

so as to close the lower end of the outer hood. The sleeve 17 ispreferably split in two or more parts so as to be conveniently appliedto the boiler, and the sleeve 17 is clamped between the band 10 andboiler to support said sleeve conveniently.

Having thus described the invention, what is claimed as new is:

1. A device of the character described comprising inner and outer hoodsto be disposed over an upright boiler, the outer hood extending lowerdown than the inner hood, a split sleeve to embrace the boiler andhaving an outstanding flange to close the lower end of the outer hood,and. a band to embrace said sleeve for clamping it on the boiler andhaving brackets for supporting the inner hood.

2. A device of the character described comprising inner and outer hoodsto be disposed over an upright boiler, a band adapted to embrace theboiler and having brackets for supporting the inner hood, and means forclosing the lower end of the outer hood and adapted to be clamped to theboiler by said band.

3. A device of the character described comprising inner and outer hoodsadapted,

than the inner hood, and means adapted to 1 removably embrace the boilerand having brackets for supporting the inner hood and having anoutstanding flange to close the lower end of the outer hood; 7

4:. A device of the character described comprising inner and outer hoodsadapted to be removably disposed over an upright boiler, the outer hoodextending lower down than the inner hood,-a sleeveto removably embracethe boiler having an outstanding flange to close the lower end of theouter hood, and a band to removably embrace the boiler andhaving'braokets fof'supporting the inner hood.

In testimony whereof our signatures. Y FRANCIS M. SIMPSON. I

ROBERT TERRY.

we hereunto aflix

